"This 1981 circular focuses on the fire support operations common to the fighting elements of a brigade-size force. It addresses the fire support team (FIST) at company-size units and fire support sections (FSS) at maneuver battalion-and...

"The purpose of this 1971 handbook is to provide a ready reference for the field artillery fire support officer (formerly the field artillery liaison officer) who functions as a fire support coordinator for a maneuver brigade or battalion."